graphics/embree: Added (ray tracing kernels)

Signed-off-by: Dave Woodfall <dave@slackbuilds.org>

Signed-off-by: Willy Sudiarto Raharjo <willysr@slackbuilds.org>

1 files changed, 43 insertions, 0 deletions

diff --git a/graphics/embree/README b/graphics/embree/README
new file mode 100644
index 0000000000000..85e4ce2ad7730
--- /dev/null
+++ b/graphics/embree/README
@@ -0,0 +1,43 @@
+Intel® Embree is a collection of high-performance ray tracing kernels,
+developed at Intel. The target users of Intel® Embree are graphics
+application engineers who want to improve the performance of their
+photo-realistic rendering application by leveraging Embree's
+performance- optimized ray tracing kernels. The kernels are optimized
+for the latest Intel® processors with support for SSE, AVX, AVX2, and
+AVX-512 instructions.
+
+Intel® Embree supports runtime code selection to choose the traversal
+and build algorithms that best matches the instruction set of your CPU.
+We recommend using Intel® Embree through its API to get the highest
+benefit from future improvements. Intel® Embree is released as Open
+Source under the Apache 2.0 license.
+
+Intel® Embree supports applications written with the Intel® SPMD Program
+Compiler (ISPC, https://ispc.github.io/) by also providing an ISPC
+interface to the core ray tracing algorithms. This makes it possible to
+write a renderer in ISPC that automatically vectorizes and leverages
+SSE, AVX, AVX2, and AVX-512 instructions. ISPC also supports runtime
+code selection, thus ISPC will select the best code path for your
+application.
+
+Intel® Embree contains algorithms optimized for incoherent workloads
+(e.g. Monte Carlo ray tracing algorithms) and coherent workloads (e.g.
+primary visibility and hard shadow rays).
+
+The single-ray traversal kernels of Intel® Embree provide high
+performance for incoherent workloads and are very easy to integrate into
+existing rendering applications. Using the stream kernels, even higher
+performance for incoherent rays is possible, but integration might
+require significant code changes to the application to use the stream
+paradigm. In general for coherent workloads, the stream mode with
+coherent flag set gives the best performance.
+
+Intel® Embree also supports dynamic scenes by implementing
+high-performance two-level spatial index structure construction
+algorithms.
+
+In addition to the ray tracing kernels, Intel® Embree provides some
+Embree Tutorials to demonstrate how to use the Embree API.
+
+Optional dependency: Intel® Threading Building Blocks (TBB) & Intel®
+SPMD Program Compiler (ISPC)